Export flights to CSV in admin #194

app/Services/ExporterService.php

@@ -0,0 +1,72 @@
+<?php
+
+namespace App\Services;
+
+use App\Interfaces\ImportExport;
+use App\Interfaces\Service;
+use App\Repositories\FlightRepository;
+use App\Services\Import\FlightExporter;
+use Illuminate\Support\Collection;
+use League\Csv\CharsetConverter;
+use League\Csv\Writer;
+
+/**
+ * Class ImporterService
+ * @package App\Services
+ */
+class ExporterService extends Service
+{
+    protected $flightRepo;
+
+    /**
+     * ImporterService constructor.
+     * @param FlightRepository $flightRepo
+     */
+    public function __construct(FlightRepository $flightRepo) {
+        $this->flightRepo = $flightRepo;
+    }
+
+    /**
+     * @param      $csv_file
+     * @return Writer
+     */
+    public function openCsv($csv_file): Writer
+    {
+        $writer = Writer::createFromPath($csv_file, 'w+');
+        CharsetConverter::addTo($writer, 'utf-8', 'iso-8859-15');
+        return $writer;
+    }
+
+    /**
+     * Run the actual importer
+     * @param Collection   $collection
+     * @param Writer       $writer
+     * @param ImportExport $exporter
+     * @return bool
+     * @throws \League\Csv\CannotInsertRecord
+     */
+    protected function runExport(Collection $collection, Writer $writer, ImportExport $exporter): bool
+    {
+        $writer->insertOne($exporter->getColumns());
+        foreach ($collection as $row) {
+            $writer->insertOne($exporter->export($row));
+        }
+
+        return true;
+    }
+
+    /**
+     * Export all of the flights
+     * @param Collection  $flights
+     * @param string      $csv_file
+     * @return mixed
+     * @throws \League\Csv\Exception
+     */
+    public function exportFlights($flights, $csv_file)
+    {
+        $writer = $this->openCsv($csv_file);
+
+        $exporter = new FlightExporter();
+        return $this->runExport($flights, $writer, $exporter);
+    }
+}